Starter quiz
- What number is 4 times more than 8?
- '32' ✓
- What is 8 multiplied by 8?
- '64' ✓
- What is the value of 8 sevens?
- '56' ✓
- How many 8s are there in 72?
- '9' ✓
- What are the factors of 24?
- 2, 12, 4, 6
- 1, 2, 4, 6, 12, 24
- 2, 3, 4, 6, 8, 12
- 1, 2, 3, 4, 6, 8, 12, 24 ✓
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- This is a list of factors for a whole number less than 50: {1, 2, 3, 4, 6, 8, 9, 12, 18, ?}. The number itself is missing from the list. What is the number?
- 18
- 24
- 30
- 36 ✓
- 48
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Exit quiz
- How far is it from the mountains to the treasure? For every 1 square side on the map there are 4km on the island.
- 3 km
- 4 km
- 8 km
- 12 km ✓
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- Which equation represents the distance from the mountains to the treasure? For every 1 square side on the map there are 4km on the island.
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- ✓
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- How far is it from the mountains to the palm tree? For every 1 square side on the map there are 4km on the island.
- 20 km ✓
- 5 km
- 25 km
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- Which equation represents the distance from the mountains to the palm tree? For every 1 square side on the map there are 4km on the island.
-
-
- ✓
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- What scale is represented by this double number line?
- For every 1 cm on the map there is 1 km on the island
- For every 1 cm on the may there are 3 km on the island ✓
- For every 4 km on the island there is 1 cm on the map
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- What is the missing number a on the double number line?
- '18' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- The language 'for every' can be used to describe the relationship between the distance on the map and on the ground.
- A double number line can represent the relationship between the distances.
- The representation helps to identify the calculations needed to solve the problem.
Common misconception
Scaling values can be done using addition and subtraction.
The ratio relationship between the values when they are scaled must remain the same.
Keywords
Scale - A scale is used to show how the distances on a map or plan relate to distances in real life
Scaling - Scaling is the operation of changing one value to another using multiplication or division, using the same factor or divisor
Double number line - A double number line is used to show the relationship between two values, in this case, the distances on the plan and those in real life
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